The D.C. Council will consider emergency legislation today to provide outgoing Mayor Marion Barry and Council Chairman David A. Clarke with $50,000 each to help in their transition to private life.

The measure also would provide Mayor-Elect Sharon Pratt Dixon with $150,000 to cover the expenses of her transition team as she prepares to take office Jan. 2.

Details of the legislation have been hammered out in recent days by Barry, Dixon and some council members. District officials note that the council has approved transition funds in the past, including money to help Barry take office after his first election in 1978 and to cover the transition expenses of Council Chairman Arrington L. Dixon after his defeat in 1982.

An unspecified amount of transition money also was given to Barry's predecessor, former mayor Walter E. Washington.

Barry and Clarke could use the funds to help cover postage, mailing, staffing, transportation and other costs associated with their departure from office.

The proposal would give Clarke the option of taking severance pay instead of using his $50,000 for transition costs. It was not immediately clear how much Clarke, whose annual salary is $81,885, would receive in severance pay.

Clarke said last night that he likely will choose to take severance pay because "it's something that's done normally for departing {government} employees" and "it will cost the taxpayers less money." Clarke said he would pay transition costs out of the severance pay.

The severance pay plan would provide Clarke his regular salary up to 22 weeks unless he finds another local or federal government job before then. He still would receive severance pay, however, if he takes a job in private industry. Clarke, a lawyer, said he is uncertain what he will do after leaving office.

Council member William P. Lightfoot (I-At Large), citing Clarke's 16 years on the council, said he supports the severance pay provision for him.

The proposed emergency legislation, effective for 90 days, also would provide severance pay for outgoing council members who have served two or more terms. That provision could affect council members Betty Ann Kane (D), who relinquished her at-large seat in an unsuccessful bid for D.C. delegate, and Nadine P. Winter (D), who lost the Ward 6 seat she has held for 16 years.

The proposal does not include funds for Chairman-Elect John A. Wilson to assume his new post.

The measure may encounter opposition from council members who are sensitive about spending because of the District's fiscal problems.

City officials also have discussed with members of Dixon's transition team the possibility of raising the mayor's salary when she takes office, but Dixon rejected the idea yesterday as politically unpalatable, according to a transition team member.

The proposal stemmed from Dixon's problems in attracting a replacement for outgoing City Administrator Carol B. Thompson because the salary isn't high enough. Dixon was told that to lift the limit on salaries for top city officials, the mayor's salary would have to be raised.

A spokesman for Dixon said a survey of 15 cities showed that Thompson's $83,600-a-year salary is less than that received by comparable officials in most other cities, a factor that complicates efforts to attract top-flight city administrators.

The aide said the average income of administrators in the 15 cities, which included Richmond, Norfolk, Los Angeles, Miami and Austin, Tex., is $118,000.

Under D.C. law, which stipulates that no District employee's salary can exceed the mayor's income, Dixon would be unable to raise the city administrator's salary above Barry's, which is $90,705, officials said.

Dixon's aide said several proposed income amounts for the new administrator's post were discussed, but Dixon rebuffed the plan because "she believes the time right now is not appropriate because of the budget problems."

The council is slated to consider other measures today that could affect Dixon when she assumes office.

She opposes one proposal, which would prohibit the mayor from approving contracts or leases worth more than $1 million without council review.

The council already has passed emergency legislation to prevent Barry from approving major contracts or leases during the final weeks of his administration.

In a letter to Lightfoot, City Auditor Otis H. Troupe recommended yesterday that the council lower the spending limit to $300,000 and take other steps to oversee spending by the mayor.

The council also may reconsider a proposal to limit the mayor and the council chairman to two terms in office. That plan was tabled in the meeting last month.